From 334ac4f043072314404afa0a9328cb2726c09fc3 Mon Sep 17 00:00:00 2001
From: lassulus <lass@lassul.us>
Date: Mon, 8 May 2017 10:22:07 +0200
Subject: [PATCH] nixos/iso-image: add option for copytoram

---
 nixos/modules/installer/cd-dvd/iso-image.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/nixos/modules/installer/cd-dvd/iso-image.nix b/nixos/modules/installer/cd-dvd/iso-image.nix
index d42174003526..8891ce0b6667 100644
--- a/nixos/modules/installer/cd-dvd/iso-image.nix
+++ b/nixos/modules/installer/cd-dvd/iso-image.nix
@@ -50,6 +50,13 @@ let
     LINUX /boot/bzImage
     APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset
     INITRD /boot/initrd
+
+    # A variant to boot with 'copytoram'
+    LABEL boot-copytoram
+    MENU LABEL NixOS ${config.system.nixosVersion}${config.isoImage.appendToMenuLabel} (with copytoram)
+    LINUX /boot/bzImage
+    APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram
+    INITRD /boot/initrd
   '';
 
   isolinuxMemtest86Entry = ''
@@ -78,6 +85,12 @@ let
     echo "initrd /boot/initrd" >> $out/loader/entries/nixos-livecd-nomodeset.conf
     echo "options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} nomodeset" >> $out/loader/entries/nixos-livecd-nomodeset.conf
 
+    # A variant to boot with 'copytoram'
+    echo "title NixOS Live CD (with copytoram)" > $out/loader/entries/nixos-livecd-copytoram.conf
+    echo "linux /boot/bzImage" >> $out/loader/entries/nixos-livecd-copytoram.conf
+    echo "initrd /boot/initrd" >> $out/loader/entries/nixos-livecd-copytoram.conf
+    echo "options init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams} copytoram" >> $out/loader/entries/nixos-livecd-copytoram.conf
+
     echo "default nixos-livecd" > $out/loader/loader.conf
     echo "timeout ${builtins.toString config.boot.loader.timeout}" >> $out/loader/loader.conf
   '';